POM sheet, commonly known as pseudo-steel plate or super steel, is a type of five major general-purpose engineering plastics renowned for its high rigidity, hardness, outstanding wear resistance, and self-lating properties. Its mechanical performance is very close of metals, making it particularly suitable for manufacturing high-precision mechanical transmission components. Hence, it is also praised in the industry as “replacing steel with plastic.”
Core Performance and Advantages
The most features of POM are its “rigidity"smoothness,” its highly crystalline molecular structure.
Key Advantages:
- Excellent mechanical properties: High hardness, great rigidity, good creep and fatigue resistance, making it the most rigid among general-purpose engineering plastics.
- **Wear self-lubric Low friction coefficient and high wear resistance make it ideal for gears, bearings, and other transmission parts, often enabling oil-free operation.
- Exceptional dimensional stability: Very low water absorption (far lower than nylon), maintaining precision dimensions even in humid environments.
- ** resistance:** Resistant to oils, organic solvents, and weak acids/bases.
⚠️ Key Limitations:
- Low toughness: The material is, with poorer impact resistance compared to nylon (PA) and P prone to fracture under strong impact.
- Poor resistance to strong acids/oxidizers: Unsuitable for use in strong acid or oxidizing environments.
- Poor weather resistance/difficult bonding: Weak UV resistance, leading to aging with prolonged outdoor use; also difficult to bond with ordinary adhesives.
- ** issues:** Prone to internal stress during processing, potentially causing deformation.
Main Application Areas
POM is widely used in nearly all industrial fields transmission and wear resistance:
- Precision machinery: Gears, cams, bearings, guide rails, lead screws, valves, etc.
Electronics/:** Relays,obbins, switches, and other insulating parts requiring high dimensional stability. - Automotive industry: Window regulator gears, seatbelt components, fuel system parts, etc.
- Consumer goods: Zippers, toy gears, power tool housings, kitchenware handles, etc.